But if you were thinking of grabbing one of the last C6 Vettes, such as the intoxicating 427 convertible, get moving. Chevy told dealers that it stops accepting guaranteed orders for the 2013 Vette at the end of this month. The Bowling Green plant will keep building the 2013 Corvette until February. But then it shuts down for six months to retool for the 2014 model.

Nissan's plans to run the radical DeltaWing race car in this weekend's Petit Le Mans at Road Atlanta took a tumble on Wednesday. Reports from the track say a GT Challenge-class Porsche hit the DeltaWing during a practice session. The DeltaWing, with driver Gunnar Jeannette aboard, rolled and hit a wall. There's even in-car video of the crash available.

But the DeltaWing is one tough car. Highcroft Racing officials said they expected to get the car repaired and have it back on track for more practice today.

The Petit Le Mans runs on Saturday, starting at 1 p.m. Eastern.

Finally, if you're in the market for a new BMW, your local dealer might have an easier time finding the model and equipment mix you want. With car sales plunging in Europe due to stumbling economies, BMW has shifted tens of thousands of cars originally targeted for the Continent to U.S. and Asian markets.

The United States and China have been particularly good markets for BMW lately. In face, the Bavarian automaker is locked in a heated battle with traditional rival Mercedes-Benz for luxury car leadership here.

So if you've got the BMW itch, now might be a good time to scratch it.